Intake Manifold Adapter Kit with Fuel Rails. Porsche 911 1974–89  ❭  AMS905007

Adapt Motorsport intake manifold adapter kit with fuel rails for Porsche 911 2.7L, 3.0L and 3.2L engines with two-bolt cylinder heads. It enables later Porsche 964 or 993 3.6 intake manifolds to be installed as part of an electronic fuel injection conversion.

Fits:

• Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
• Porsche 911 1978-1983 3.0L / SC
• Porsche 911 1984-1986 3.2L
• Porsche 911 1987-1989 3.2L G50

Kit Contents

• 6 CNC-machined aluminium intake adapters
• 4 fuel-rail spacer posts
• 4 bolts for standard full-length Bosch injectors
• 12 nuts and washers
• 2 Fuel rails

What This Product Does

The six adapters provide the interface between an earlier two-bolt Porsche 911 cylinder head and a later 964 or 993 3.6 intake manifold. Each adapter is machined to suit the selected cylinder-head port diameter and transitions to the manifold's 42mm bore.

A compact overall height helps retain clearance around the throttle body, idle air control valve and the upper area of the engine bay. The injector position is aligned above the existing CIS injector relief in the intake port. 

Functions

• Connects a 964 or 993 3.6 intake manifold to an earlier two-bolt cylinder head
• Supports conversion from CIS or an earlier injection arrangement to EFI
• Positions the injector over the original CIS injector-port relief
• Provides a tapered transition to the 42mm intake-manifold bore
• Maintains a short installed height for engine-bay clearance
• Accommodates Bosch injectors with 14mm O-ring fittings

Technical Details

• Five-axis CNC-machined high-grade aluminium construction
• Protective anodised finish
• Designed for Porsche 911 2.7L, 3.0L and 3.2L two-bolt cylinder heads
• Fuel-rail spacers are marked for adjustment to long, medium or short Bosch injector formats
• Manifold-side transition is designed for a 42mm bore

Components Not Included

Intake manifolds, rubber joining sleeves, fuel injectors and hose clamps are not supplied with the base adapter kit.

Installation Notes

This component forms part of a custom EFI installation rather than a complete conversion package. Confirm the cylinder-head port diameter, injector length, manifold specification and clearance around the throttle and idle-control components before assembly. Engine-management hardware, fuel delivery components and calibration must be selected for the completed installation.